Gas burner head



y 1958 A. 'H. BRODBECK ETAL 2,843,199

GAS BURNER HEAD Filed Jan. 16, 1956 GAS BURNER HEAD Almer H. Brodbeck,St. Louis, and Harold C. Reinhart, Ferguson, Mo., assignors to FoodGiant Markets, Inc., a corporation of New Jersey Application January 16,1956, Serial No. 559,455 1- Glaim. (GI: 158--116) This inventionrelatesto gas burner heads used on cookingranges.

Among the several objects of the invention may be noted the provision.of. an improved burner head adapted to. burn, evenly at all buring rateswithout flash. back through the, burner ports and without blowout; thepro vision of a burner head of the class described in which an optimumof secondary aeration is obtained at all burning rates; and theprovision of a burner head of this class provided with means to inhibitclogging due to spill-over from cooking vessel contents, but which ifclogged may readily be disassembled for convenient cleaning. Otherobjects and features will be in part apparent and in part pointed outhereinafter.

The invention accordingly comprises the elements and combinations ofelements, features of construction, and

and the scope of which will be indicated in the following claim.

In the accompanying drawings, in which one of various possibleembodiments of the invention is illustrated,

Fig. 1 is a vertical section through a burner assembly made according tothe invention;

Fig. 2 is a right-hand elevation of the assembly shown in Fig. 1;

Fig. 3 is a plan view of the assembly, parts being broken away forpurposes of description; and,

Fig. 4 is an enlarged fragmentary detail of the upper left-hand portionof Fig. 1.

Corresponding reference characters indicate correspondis shown atnumeral 1 an annular hollow body, one side of which is bulged as shownat 3 so as to provide for attachment of a fuel supply pipe 5. Gas and anappropriate amount of primary air are supplied to the body by the pipe5. A base 7 of the 2,843,199 Patented July 15, 1958 accurately formedcylindric annular port 29 between the ring and the sleeve.

Thering 19 is rovided with a lower tier of ports, for

example, twelve No. 51 drill holes 31 equally spaced. Th

woven to approximately 18 mesh.

On the side of the body 1 opposite the When fuel and primary air areintroduced into the port 37, a vertical fishtail flame is produced fromthe slot 39, the same being ignited by the flame of pilot 43.

Assuming that fuel, including primary air, is introduced into the body 1through pipe 5, this will pass into the ring 19 and escape through boththe upper slots 33 and lower circular ports 31. Ignition takes placefrom the flame issuing from slot 39, The screen 35 prevents flash back.

plete ring therein. have the elfect of teristic for the gas escapingthrough the slots 33, even at low burning rates through the latter. Itwill be noted in this connection that a thin cylinder of fuel includingpri- 29 just within the geous results attained.

As various changes could be made in the above constructions withoutdeparting from the scope of the in- 3 vention, it is intended that allmatter contained in the above description or shown in the accompanyingdrawings shall be interpreted as illustrative and not in a limitingsense.

We claim:

A gas burner head comprising an annular gas-transmitting body having anupper opening and a lower threaded opening, a tube threaded into saidlower opening extending with substantial clearance through the upperopen ing, an outwardly directed flange on the tube above the upperopening, an inward annular seat located around said upper opening, aninwardly uninterrupted cylindric marginal sleeve extending up from saidseat part way to said flange, an externally uninterrupted cylindric ringextending between the seat and the flange and spaced a substantialdistance outward from the tube and a relatively small distance inwardfrom the sleeve, said ring extending vertically across the space betweenthe upper end of the sleeve and said flange and having a lower tier ofopenings within the sleeve, which openings are of relatively smallindividual and total areas, and an upper tier of ports exposed in saidspace, which ports are of relatively large individual and total areasand being vertically elongate, a circular screen telescoped within saidring and covering said elongate ports, the space between the sleeve andthe ring being characterized by the absence of any transverseobstruction thereacross, whereby there is provided a small continuousring of flame at the upper end of said sleeve and beneath said elongateports and positioned within upward flow of secondary air from theoutside of the sleeve for unimpeded aeration of gas flowing from theelongate ports, said tube, ring and screen being freely removable fromthe body by unthreading the tube.

References Cited in the file of this patent UNITED STATES PATENTS1,945,934 Dollin et al. Feb. 6, 1934 2,319,866 Jaros May 25, 19432,539,101 Reeves Jan. 23, 1951 2,638,976 Vixler May 19, 1953 2,640,531Lamar June 2, 1953 2,646,112 Brodbeck July 21, 1953 FOREIGN PATENTS685,204 Germany Dec. 14, 1939 976,678 France Nov. 1, 1950

